/*
 * RMTazioStarter.java    ver   29/nov/2009
 *
 * Copyright (c) 2009 mentalsmash.org
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * The use of the Apache License does not indicate that this project is
 * affiliated with the Apache Software Foundation.
 */
package org.mentalsmash.tazio.impl;

import java.util.List;

import org.mentalsmash.tazio.cache.RMCacheModule;
import org.mentalsmash.tazio.commons.CommonsModule;
import org.mentalsmash.tazio.commons.NodesNamer;
import org.mentalsmash.tazio.commons.timer.TimerModule;
import org.mentalsmash.tazio.net.ril.RemoteInvoker;
import org.mentalsmash.tazio.net.ril.impl.RILBaseImplModule;
import org.mentalsmash.tazio.net.ril.impl.RMRILModule;
import org.mentalsmash.tazio.transactions.log.LogModule;
import org.mentalsmash.tazio.transactions.management.rm.RMTransactionManagementModule;
import org.mentalsmash.tazio.transactions.objects.RMObjectsModule;
import org.mentalsmash.tazio.transparency.configuration.ReplicaManagerModule;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.collect.ImmutableList;
import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;

/**
 * @version ver 29/nov/2009
 * @author Andrea Reale <andrea.reale@gmail.com>
 * 
 */
public class RMTazioStarter {
    private static final Logger log = LoggerFactory
	    .getLogger(RMTazioStarter.class);

    private volatile boolean initialized = false;
    private final boolean local;

    private final String conf;
    
    public RMTazioStarter(boolean local, String conf) {
	this.local = local;
	this.conf = conf;
    }

    public synchronized void init() {
	if (!initialized) {

	    String name = NodesNamer.nextRMName();
	    final List<AbstractModule> modules;
	    if (local) {
		modules = ImmutableList.of(new TimerModule(),
			new RMTransactionManagementModule(name),
			new LogModule(), new RMObjectsModule(),
			new RMCacheModule(name), new RMRILModule(name, local),
			new CommonsModule());
	    } else {
		modules = ImmutableList.of(new TimerModule(),
			new RMTransactionManagementModule(name),
			new LogModule(), new RMObjectsModule(),
			new ReplicaManagerModule(conf), new RMCacheModule(name),
			new RMRILModule(name, local), new CommonsModule());
	    }
	    // log.debug("GUICE modules loaded.");
	    final Injector tazioInjector = Guice.createInjector(modules);
	    log.debug("GUICE injector created.");

	    // this.facade =
	    // tazioInjector.getInstance(RMTransactionsFacade.class);
	    // log.debug("RMTransactionsFacade instance retrieved");

	    this.invoker = tazioInjector.getInstance(RemoteInvoker.class);
	    // log.debug("RemoteInvoker instance retrieved");

	    initialized = true;
	}
    }

    // public RMTransactionsFacade getTxFacade() {
    // if (!initialized) {
    // throw new TazioRuntimeException("call initTazio() first");
    // }
    // return this.facade;
    // }

    private RemoteInvoker invoker;

    public RemoteInvoker getRILInvoker() {
	return this.invoker;
    }
}
